The applications of honeycomb structure plate are very important, since its structure have high strength in addition to the low weight. Therefore, these structures are used in the multi-important application, where, more its application is applied to buckling load in addition to other loads. Thus, it was necessary to highlight the buckling behavior of its structure. There, in this research, a suggested analytical solution to evaluate the critical buckling load of honeycomb sandwich plate...

Topics: Buckling Analysis, Honeycomb Plate, Honeycomb Buckling, Finite Element Buckling & ANSYS Buckling

The subject of this research is the buckling behavior of a simply supported rectangular plate, with a bulb-flat stiffener attached to one side of the plate. The plate structure is subjected to axial compression that increases to the buckling load. The stiffener cross-section has a thin web and a bulb-flat flange that extends to one side of the web. Results of the investigation include planar property formulas for the asymmetric flange geometry, an analytic expression for the Saint Venant...

Topic: Buckling (Mechanics)

http://uf.catalog.fcla.edu/uf.jsp?st=UF000568321&ix=nu&I=0&V=D

Topic: Buckling (Mechanics.

113
113

Oct 6, 2015
10/15

by
Shudde, Rex H.

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Title from cover

Topic: BUCKLING (MECHANICS),PROJECTILES.

Analyses were performed for static and dynamic buckling of a continuous fiber embedded in a matrix and fiber breakage in order to determine the effects of interfacial debonding on the critical buckling load and the domain of instability. A beam on elastic foundation model was used for this study. The study showed that a local interfacial debonding between a fiber and a surrounding matrix resulted in an increase of the wavelength of the buckling mode. An increase of the wavelength yielded a...

Topic: buckling of composites

64
64

Oct 5, 2015
10/15

by
Danielson, D. A. (Donald A.)

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Technical report for period October 1993 - December 1993.

Topic: BUCKLING.,AXIAL LOADS.

Title from cover

Topics: BUCKLING (MECHANICS), PROJECTILES.

Title from cover

Topics: BUCKLING (MECHANICS), PROJECTILES.

Technical report for period October 1993 - December 1993.

Topics: BUCKLING., AXIAL LOADS.

83
83

Oct 9, 2015
10/15

by
Schneidewind, Norman F.

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Title from cover

Topic: BUCKLING (MECHANICS),PROJECTILES.

Title from cover

Topics: BUCKLING (MECHANICS), PROJECTILES.

The buckling load of a blade stiffened laminated composite plate having midplane symmetry is maximized for a given total weight. The thickness of the layers and the width and height of the stiffener are taken as the design variables. Buckling analysis is carried out using a finite element method. The optimization problem is solved using commercially available optimization packages. Due to the highly nonlinear nature of the optimality equations, several local optimum solutions are found. To...

Topics: Buckling (Mechanics), Design., Design optimization, blade stiffened plate, buckling

384
384

May 21, 2011
05/11

by
Lundquist, Eugene

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A chart is presented for the coefficient in the formula for the critical compressive stress at which cross sectional distortion begins in a thin-wall tube of rectangular section symmetrical about its two principal axes. The energy method of Timoshenko was used in the theoretical calculations required for the construction of the chart. The deflection equation used in this method was selected to give good accuracy. The exact values given by solution of the differential equation were calculated...

Topics: LOADS - WING PANELS, THEORIES - BUCKLING - TIMOSHENKO, THEORIES - BUCKLING - FRANKLAND, THEORIES -...

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71

Oct 9, 2015
10/15

by
Washburn, Alan R.

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Title from cover

Topic: BUCKLING (MECHANICS),PROJECTILES.

A procedure is described to determine lateral buckling loads for initially straight beams. Loading and beam geometry may vary along the length. Warping rigidity is not considered. End conditions of considerable generality may be treated. The algorithm depends on solving a convergent sequence of sixteenth order eigenproblems . A computer program implementing this procedure has been developed and is described herein.

Topics: Mechanical engineering, Lateral buckling, lateral instability, buckling of beams

http://uf.catalog.fcla.edu/uf.jsp?st=UF000577131&ix=nu&I=0&V=D

Topics: Sandwich construction, Buckling (Mechanics).

Main buckling and post-buckling analysis methods for composite structures are presented, along with the discussion on their potential challenges in handling the accuracy of prediction. Common buckling and post-buckling behaviors of composite structures are described, and the capabilities of corresponding analysis techniques are reviewed. Compared with the structures made of metals, the anisotropy of composite materials is one of the key difference which could be considered in ...

Topics: Composite Structures, Buckling, Post-Buckling, Structural Analysis, Shell Structures, Anisotropy

Technical report for period October 1987 - March 1988.

Topics: STIFFENING., BUCKLING., BEAMS(STRUCTURAL).

219
219

Jun 18, 2010
06/10

by
Bolotin, V. V.; Novichkov, Yu. N

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Buckling and steady flutter of heat compressed panels in supersonic flow

Topics: BUCKLING, THERMAL BUCKLING, COMPRESSING, FLUTTER ANALYSIS, PANEL FLUTTER, SUPERSONIC FLOW, THERMAL...

Click here to view the University of Florida catalog record

Topics: Shells (Engineering), Buckling (Mechanics)

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84

Oct 5, 2015
10/15

by
Danielson, D. A. (Donald A.).

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Technical report for period October 1987 - March 1988.

Topic: STIFFENING.,BUCKLING.,BEAMS(STRUCTURAL).

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2.0

Jun 1, 2022
06/22

by
Åkesson, B. (Björn)

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xiv, 163 p. : 25 cm

Topics: Buckling (Mechanics), Structural stability

The main motivation for this thesis study is that significant workload for aging transport aircrafts is related to dent removal from fuselages. This thesis is a preliminary investigation of aircraft fuselage dents using the Finite Element Method (FEM) via FEA ABAQUS software. We investigated single impact dent on fuselage panel at various locations and impact speeds. The material used for our finite element models is Aluminum Alloy 2024-T3, a typical material used for fuselages of older...

Topics: Airplanes, Fuselage, Buckling (Mechanics)

From the bitsavers.org collection, a scanned-in computer-related document. mit :: ai :: aim :: AITR-1590

Topics: column, buckling, control, mode, actuators, active, actuator, actuation, deflection, applied,...

477
477

May 21, 2011
05/11

by
Talkin, Herbert

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In order to facilitate solutions of the general problem of helicopter selection, the aerodynamic performance of rotors is presented in the form of charts showing relations between primary design and performance variables. By the use of conventional helicopter theory, certain variables are plotted and other variables are considered fixed. Charts constructed in such a manner show typical results, trends, and limits of helicopter performance. Performance conditions considered include hovering,...

Topics: STRESSED SKIN-STIFFENER COMBINATIONS - BUCKLING, BEAMS - FLANGES, COLUMNS - INSTABILITY, COLUMNS -...

43
43

Sep 10, 2013
09/13

by
Thompson, J. M. T; Hunt, G. W; International Union of Theoretical and Applied Mechanics

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Sponsored by the International Union of Theoretical and Applied Mechanics

Topics: Structural stability, Buckling (Mechanics)

Source: removedNEL

http://uf.catalog.fcla.edu/uf.jsp?st=UF003804949&ix=nu&I=0&V=D&pm=1

Topics: Buckling (Mechanics, Aerodynamics--Research.

651
651

Jun 20, 2010
06/10

by
Ambartsumyan, S. A.; Khachatryan, A. A

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Multimodulus elasticity theory applied to bodies resisting extension and compression

Topics: BUCKLING, COMPRESSION LOADS, ELASTIC PROPERTIES, ISOTROPY, COMPRESSION BUCKLING, DYNAMIC MODULUS,...

In this project work, a new consistent higher order theory has been developed for the buckling and post buckling analysis of sandwich beams having functionally graded faces. The model combines an approximation for the displacement fields with third order in the thickness direction. The governing equilibrium equations of motion and the related boundary conditions have been derived. The parametric study of the beam behaviors under different situations is performed and the important influencing...

Topics: Buckling, Post Buckling, Sandwich Beam, Shear Deformation Theory, Functionally Graded Faces

869
869

Jan 22, 2008
01/08

by
Mayer, Rudolf

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Book digitized by Google from the library of the University of Wisconsin - Madison and uploaded to the Internet Archive by user tpb.

Topics: Buckling (Mechanics), Strains and stresses, Buckling (Mechanics), Strains and stresses,...

Source: http://books.google.com/books?id=nr80AAAAMAAJ&oe=UTF-8

Buckling and post-buckling analysis was performed on composite stiffened panel using Abaqus/CAE to obtain the critical load and modes of failures, with different parameters like ply orientation, different composite materials, stiffeners & by changing the number of stiffeners were derived. To investigate the buckling behavior of composite curved stiffened panels, the nonlinear FE tools Abaqus/Explicit are employed. Studies were conducted using the analytical tool in order to understand the...

Topics: Buckling, Ply Sequence & ABAQUS etc

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733

May 21, 2011
05/11

by
Shortal, J

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In this report are presented the results of wind-tunnel tests of retractable spoilers on the upper surface of a Clark Y wing, which have been made as part of an investigation of lateral control devices being conducted by the National Advisory Committee for Aeronautics. Spoilers with chords up to 15.0 percent of the wing chord were tested in several locations on a plain rectangular wing and in two locations on the same wing equipped with a 20.0 percent chord split flap down 60 degrees. Charts...

Topics: TUBING, RECTANGULAR - STRESSES, COMPRESSIVE, STRESSED SKIN, CHARTS - STRESSES, THEORIES - BUCKLING...

1,090
1.1K

Sep 4, 2008
09/08

by
Mayer, Rudolf

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Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.

Topics: Buckling (Mechanics), Strains and stresses, Buckling (Mechanics), Strains and stresses,...

Source: http://books.google.com/books?id=K4FLAAAAMAAJ&oe=UTF-8

14
14

Oct 21, 2021
10/21

by
Jones, Robert M. (Robert Millard)

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xxiv, 824 p. : 24 cm

Topics: Buckling (Mechanics), Structural analysis (Engineering)

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77

Oct 8, 2015
10/15

by
Sovereign, Michael G.;Jones, Carl R.

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Title from cover

Topic: ELASTIC PLATES AND SHELLS.,BUCKLING (MECHANICS)

Manuscript copy

Topics: Cylinders, Strains and stresses, Buckling (Mechanics)

In this review paper to analysis of the structural wood –I joist section also determine the bearing capacity of I – Joist section. In a circular holes in the webs of wood I – Joists for the remediation techniques used for evaluation. In this review study also investigation of elastic tensional Buckling capacity of wood I –Joists.

Topics: I-joists, buckling capacity, FEM models

436
436

Jul 6, 2009
07/09

by
Mangrum, Elmer, 1936-

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Manuscript copy

Topics: Cylinders, Buckling (Mechanics), Strains and stresses

Introduction. Loss of stability and buckling of a round plate may be observed if the plate is loaded on the lateral surface. The solution to this problem is based on a bifurcation approach. In this case, a plate is considered as a nonlinear elastic body. It is important to choose the relation between stresses and deformations in sustainability problems of nonlinear elasticity. Simple laws of state (constitutive equations) were considered in early works devoted to this problem, for example,...

Topics: finite deformation, stresses, buckling, plate, stability

Thermal environment influences the buckling behavior of structures, in addition to the mechanical loads acting on it. The present work aims to predict the buckling load factor of thin FRP laminates subjected to pressure and temperature loads. The problem of thin FRP laminate in the form of rectangle is simulated in finite element software ANSYS using 2-D finite element method that works on classical lamination theory. Two different stacking arrangements; (i) symmetric cross ply and (ii)...

Topics: Thin Laminate, FEM, FRP, Thermoelastic & Buckling

75
75

Oct 18, 2016
10/16

by
IASET Journals

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A column is a vertical compression member designed to transmit compressive loading. It is generally seen that when a slender member is loaded in compression, it will bow sideways or buckle, and if the load is then increased further the column will eventually fail in bending. Buckling is a mode of failure that is mainly observed in compression members due to structural instability. A pretwisted column has its strong flexural plane weakened and its weak flexural plane strengthened, leading to a...

Topics: Pretwisting, Slenderness Ratio, Buckling, Local Failure

3
3.0

Aug 13, 2022
08/22

by
Kollár, Lajos

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303 p. : 25 cm

Topics: Shells (Engineering) -- Plastic properties, Buckling (Mechanics)

Shell structures are widely used in civil, mechanical, aerospace and marine engineering applications (e.g. offshore oil tanks, automotive industry, aircraft and submarines). Like other types of structures, they are susceptible to various types of defect and damage such as cracking, corrosion, chemical attack and time-dependent material degradation, which may impair their structural integrity and affect their service life. The presence of cracks in a cylindrical structure can considerably affect...

Topics: Buckling of Cylinder, Buckling analysis Cylinder, Fracture Analysis of a Cylinder, Vibration...

An existing computer program for the geometrically nonlinear analysis of arbitrarily loaded shells of revolution was modified to incorporate initial geometric imperfections into the buckling solution of an axially loaded circular cylindrical shell. Several different boundary conditions were considered, and the predicted buckling loads were examined to determine the significance of the initial imperfections and the boundary conditions for the shell stability problem. The computed buckling loads...

Topics: Aeronautics, Shell buckling, Cylinder, Imperfections, Computer

Naval Postgraduate School

323
323

Dec 17, 2012
12/12

by
Sovereign, Michael G.;Jones, Carl R.

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Title from cover

Topics: ELASTIC PLATES AND SHELLS., BUCKLING (MECHANICS)

Naval Postgraduate School

412
412

Jan 15, 2013
01/13

by
Batoz, Jean-Louis.;Cantin, Gilles.

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Progress report for period Jan 1984 - Sep 1984.

Topics: STRESS STRAIN RELATIONS., BUCKLING., SHELLS(STRUCTURAL FORMS).

240
240

Nov 9, 2012
11/12

by
Stanley S. Smeltzer III; Lynn M. Bowman

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Topics: buckling design, design, oblate bulkheads, propellant tank

Source: The Internet Archive

167
167

Oct 6, 2015
10/15

by
Batoz, Jean-Louis.;Cantin, Gilles.

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Progress report for period Jan 1984 - Sep 1984.

Topic: STRESS STRAIN RELATIONS.,BUCKLING.,SHELLS(STRUCTURAL FORMS).

An unbalanced, sandwich composite structure consisting of TI 6AL-4V and GRP (Glass Reinforced Plastic) skins with a phenolic honeycomb core is being considered for construction of a surface ship mast which will enclose critical shipboard equipment. Stability of the structure is one of the major concerns in the design process. This research focuses on analytical and experimental studies of an unbalanced composite sandwich beam subject to a compressive axial load. The limit load of each skin...

Topics: Buckling instability, Limit load unbalanced sandwich composite

198
198

May 21, 2011
05/11

by
Warner, Edward

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The advantages of helicopters are listed along with a discussion of safety devices, the problems of control, and the need for horizontal flight.

Topics: PLATES - BUCKLING CURVED, PLATES, CURVED - STRENGTH, COMPRESSIVE, STRESSED SKIN - PLATES, CURVED,...